JPH0365774A - Three-dimensional measured result display device - Google Patents

Abstract

PURPOSE:To speedily execute the two-dimensional CAD display of three- dimensional measurement data by converting the measurement data, which are obtained by a three-dimensional measuring means, to CAD information, setting a direction where the feature of the form of the measurement data is projected on a display plane, and continuously and polygonally displaying measuring points by a linear element. CONSTITUTION:A three-dimensional measuring instrument 12 measures certain plural cross-sectional contours 11a to an object 11 and measured results are respectively registered as numerical data to a floppy disk 13. In a two-dimensional CAD 14, the batch processing of the registered data is executed based on the registered data and a processed result is registered as the data base of the two-dimensional CAD 14 to a hardware disk 17. At such a time, the direction to project the feature of the form in the cross section measurement data in the plane, where the feature can be displayed, is automatically set and the measuring points of the cross section measurement data, for which the projecting direction is set, are continuously and polygonally displayed. Thus, with the two-dimensional CAD to be singly operated as an object, the necessary two-dimensional data can be automatically prepared and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a three-dimensional measurement result display device used for evaluating and verifying products.

2. Description of the Related Art In conventional technology, for example, in a manufacturing factory, three-dimensional measurement evaluation or verification is one of the inspections of manufactured products. In this inspection, a product, etc. (hereinafter referred to as the object to be measured) is measured with a three-dimensional measuring device, the shape and dimensions of the object to be measured are determined from the measurement results, and it is determined whether or not the object to be measured has been manufactured correctly. . A conventional example of a three-dimensional measurement result display device used for such product inspection is shown in FIG. 6, for example. This device consists of a three-dimensional measuring device 1, a three-dimensional CAD 2 that creates and displays three-dimensional diagrams based on the data from the three-dimensional measuring device 1, and a converter that converts the data of the three-dimensional CAD 2 so that it can be displayed in two dimensions. a 3D/2D data converter 3, and a 2D CAD 4 that graphically displays the 2D data created by the 3D/2D data converter 3.
It consists of A keyboard 5 and a display 6 are connected to the coordinate measuring instrument 1, while a keyboard 7 and a display 8 are connected to the two-dimensional CAD 4. The two-dimensional CAD 4 includes the three-dimensional measuring device 1 and the three-dimensional CAD 2.
Although the three-dimensional/two-dimensional converter 3 and the three-dimensional/two-dimensional converter 3 are connected to each other, they are provided separately from these functional units.

When operating this conventional three-dimensional measurement result display device, first all the contour measurement data measured by the three-dimensional measuring device 1 are simultaneously registered in one area of the three-dimensional CAD 2, and then three-dimensional/two-dimensional In the converter 3, a two-dimensional display is set for each contour measurement shape based on the contour measurement shape data, and then the designer (or operator) re-inputs it into the two-dimensional CAD 4, and this two-dimensional CA
It was displayed and registered using the D4's display 8.

Problems to be Solved by the Invention However, with such a conventional three-dimensional measurement result display device, it is necessary for the operator to learn how to operate both three-dimensional CAD2 and two-dimensional CAD4, which have different operating methods. Furthermore, there is a problem that processing efficiency is poor because many steps are required before the final two-dimensional CAD data is obtained.

The present invention was made to solve these conventional problems, and its purpose is to create a two-dimensional CA that can operate independently.
It is an object of the present invention to provide a three-dimensional measurement result display device that can automatically create necessary two-dimensional data for D.

Means for Solving the Problems In order to achieve the above object, the present invention includes a three-dimensional measurement result display device, a three-dimensional measurement device that measures the contour of the cross-sectional shape of a measurement object, and a three-dimensional measuring device that converts the cross-sectional measurement data into CAD information. means for setting the direction in which the feature of the shape of the cross-sectional measurement data is projected onto a plane; and means for displaying the measurement points of the measurement data for which the projection direction has been set in a polygon by connecting them by linear elements. It consists of a means for adding information such as a dimension display of a shape and an average value of a projection plane to generate two-dimensional CAD information.

Therefore, according to the present invention, the numerical data that is the measurement result of the three-dimensional measuring means can be registered in CAD from the most suitable direction, and the measured shape can be displayed and confirmed. After that, evaluation and verification can be easily performed using the CAD function, and the results can be directly utilized in CAD drawings.

Embodiment FIGS. 1 to 5 are diagrams showing an embodiment of a three-dimensional measurement result display device according to the present invention. In FIG. 1, reference numeral 11 indicates an object to be measured in three dimensions, 12 is a three-dimensional measuring device to measure the object 11, and 13 is a floppy disk as a storage medium in which measurement data of the object 11 is registered. 14 is a stand-alone two-dimensional CAD that processes the measurement data of the object 11;
M is used. Further, 15 is a layer provided in the two-dimensional CAD 13 in which general graphic information is registered, and 16 is a group of layers for supplementary graphic manipulation and utilization. Further, the two-dimensional CAD 14 is connected to or has a built-in hard disk 17 for storing various information such as graphic data obtained by the calculation processing of the two-dimensional CAD 14.

Next, the operation of the three-dimensional measurement result display device having such a configuration will be explained.

In the embodiment described above, the three-dimensional measuring device 12 measures the contours 11a of a plurality of cross-sectional shapes of the object 11, and stores the results individually as numerical data on the floppy disk 1.
Register for 3. Furthermore, the two-dimensional CAD 14 performs batch processing of data based on the registered data, and the results are registered in the hard disk 17 as a database of the two-dimensional CAD 14. At this time, using the multilayer structure of the two-dimensional CAD 14, layer 1 where general graphic information is registered
5, all data of the object 11 is displayed on a projection plane in the X and Y directions, and the entire appearance is registered.

FIG. 2 shows a conceptual diagram of the logic for determining the projection plane of one cross-sectional shape.

In this case, the cross-sectional shape is measured as point data, but this is expressed as a collection of lines connecting two points.

At this time, a cross-sectional shape indicated by reference numeral 18 is obtained, and the two-dimensional CAD 14 analyzes the cross-sectional shape 18 with respect to this shape.
Calculate the amount of change in x, y, and z for. Let the amounts of change obtained as a result of this calculation be ΔX, ΔY, and ΔZ, respectively, select one direction with a larger amount of change than these three values, and register this plane as the projection plane.

FIG. 3 shows a method of displaying the maximum value and minimum value of one cross-sectional shape determined as described above. Change this display to X-Y
When displayed on a plane, the maximum value in the X direction corresponds to the X coordinate of point P A1 the minimum value in the X direction corresponds to the X coordinate of point Q B1 the maximum value in the Y direction corresponds to the Y coordinate of point R C1 The minimum value in the Y direction corresponding to the Y coordinate is calculated, and the respective distances from the origin are displayed in the entry boxes 19.20 and 21.22 on the screen.
Display the dimensions. At this time, the positions of the entry frames 19, 20, 21, and 22 in which the respective dimensions are displayed are calculated and displayed so that they do not overlap.

FIG. 4 shows a layer 15 that is registered by projecting all the values of one cross-sectional shape calculated and displayed in this way in the X and Y directions. Since this layer 15 is a projected cross section in the XY direction,
Ignores data in two directions and displays everything in one layer as a collection of lines connecting two points of point data. At this time, for the two points of start data and end data for each cross-sectional shape, the file name where the point data is registered in the start data coordinates, and the number of the layer where the data is registered in the end data coordinates. Display.

FIG. 5 is a diagram showing the entire operating procedure of this embodiment. As shown in this figure, when the operation starts, in a processing step (hereinafter simply referred to as step) 31, measurement data is read by the two-dimensional CAD 4.

In this processing step, the measurement data is transferred from the floppy disk 13 on which the measurement data is recorded and stored.
Loaded into AD14. Next, in step 32, it is checked whether or not a 1000-figure display, that is, a display for each cross-sectional shape is to be performed. When it is determined in this check operation that a child figure should be displayed, the process moves to step 33, where the data of the child figure is output and the details of each cross-sectional shape are displayed. If this process is performed, and if it is determined in step 32 that the child diagram is not to be displayed, the process moves to step 34. In this processing step, it is checked based on the judgment data whether or not to display the parent diagram, that is, the entire image. If it is determined that the entire image is not to be displayed, the process moves to step 36, while if it is determined that the entire image is to be displayed. The process moves to step 35 to display the parent diagram, and then the process moves to step 36. Step 36
Then, a processing operation is performed to register the cross-sectional shape displayed so far as CAD data, and a CAD file is created. This CAD file is stored in the hard disk 17 loaded into the two-dimensional CAD 14.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described in detail, the present invention includes means for converting measurement data obtained by a three-dimensional measurement means into CAD information, and setting a direction for projecting shape features of the measurement data onto a display plane. Since the display device is composed of the means and the means for displaying the measurement points of the measurement data in a polygon by connecting them by linear elements, the three-dimensional measured data can be immediately converted into two-dimensional CAD.
Can display and also CAD 3D measurement results
It can be used as a database for two-dimensional design. Furthermore, various effects can be obtained, such as being able to be effectively used for measurement evaluation or verification of products.

[Brief explanation of drawings]

FIG. 1 is a system schematic diagram of an embodiment of the three-dimensional measurement result display device according to the present invention, FIG. 2 is a conceptual diagram of the logic for determining the display surface in the embodiment, and FIG. 3 is a display of the dimensions of the displayed cross-sectional figure. FIG. 4 is a diagram showing the XY direction display of all measurement results, FIG. 5 is a flowchart showing the overall processing flow in the above embodiment, and FIG. 6 is a conventional three-dimensional measurement result display device. FIG. 2 is a block diagram showing the configuration of FIG. 11...Object 12...3D measuring device 13...Floppy disk 14...2D C
AD17...Hard disk

Claims (1)

[Scope of Claims] Three-dimensional measuring means for measuring the outline of an arbitrary cross-sectional shape of a measurement object; means for classifying a plurality of cross-sectional measurement data obtained by the three-dimensional measuring means and converting them into CAD information; means for automatically setting a direction for projecting onto a plane capable of displaying shape features in the cross-sectional measurement data;
A three-dimensional measurement result display device comprising: means for displaying a polygon by connecting linear elements;